Mirelia Q Melromarc from The Rising of the Shield Hero / Tate no Yuusha no Nariagari
When I tested it some different checkpoint and LORA's it seemed to work well with this LORA.
LORA weight 0.7 works great, but feel free to adjust the strength to your liking.
The settings for the Pony version can differ from the 1.5 version
Prompts that I usually used:
purple hair, purple eyes, purple dress, royal dress, high collar, white puffy sleeves, long sleeves, crown, earrings
purple hair, purple eyes, armor, breastplate, armored dress, crown, earrings